3330031021 has 4 divisors (see below), whose sum is σ = 3330304000. Its totient is φ = 3329758044.

The previous prime is 3330030997. The next prime is 3330031037. The reversal of 3330031021 is 1201300333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3330031021 is a prime.

It is a super-2 number, since 2×3330031021² = 22178213201644604882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3330030986 and 3330031004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3330031051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117291 + ... + 142888.

It is an arithmetic number, because the mean of its divisors is an integer number (832576000).

Almost surely, 2^3330031021 is an apocalyptic number.

It is an amenable number.

3330031021 is a deficient number, since it is larger than the sum of its proper divisors (272979).

3330031021 is a wasteful number, since it uses less digits than its factorization.

3330031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272978.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 3330031021 is about 57706.4209685543. The cubic root of 3330031021 is about 1493.3081192541.

Adding to 3330031021 its reverse (1201300333), we get a palindrome (4531331354).

The spelling of 3330031021 in words is "three billion, three hundred thirty million, thirty-one thousand, twenty-one".